/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #e91e63;
  --primary-dark: #c2185b;
  --secondary: #6a1b9a;
  --accent: #ff6b9d;
  --bg-light: #fef2f5;
  --bg-white: #ffffff;
  --text-dark: #1a1a2e;
  --text-gray: #4a4a68;
  --text-light: #6b6b8a;
  --border: #f0e6ef;
  --shadow: rgba(233, 30, 99, 0.12);
  --shadow-lg: rgba(233, 30, 99, 0.18);
  --radius: 12px;
  --radius-lg: 20px;
  --container: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.7;
  color: var(--text-dark);
  background: var(--bg-white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-dark);
}

/* Container */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: var(--bg-white);
  box-shadow: 0 2px 20px var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
  text-decoration: none;
}

.logo svg {
  width: 36px;
  height: 36px;
  color: var(--primary);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 30px;
}

nav a {
  font-weight: 500;
  color: var(--text-gray);
  transition: color 0.2s ease;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

nav a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn svg {
  width: 28px;
  height: 28px;
  color: var(--text-dark);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--bg-light) 0%, #fff0f5 100%);
  padding: 80px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
  opacity: 0.06;
  border-radius: 50%;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text-dark);
}

.hero h1 span {
  color: var(--primary);
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-gray);
  max-width: 600px;
  margin: 0 auto 35px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  box-shadow: 0 4px 15px var(--shadow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--shadow-lg);
}

.btn-secondary {
  background: var(--bg-white);
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--bg-light);
}

/* CTA Button */
.cta-btn {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  font-weight: 600;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px var(--shadow);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--shadow-lg);
}

.cta-floating {
  position: fixed;
  bottom: 25px;
  right: 25px;
  z-index: 999;
  padding: 16px 30px;
  font-size: 1.05rem;
  border-radius: 50px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.03); }
}

/* Sections */
section {
  padding: 80px 0;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 15px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 50px;
}

/* Features Grid */
.features {
  background: var(--bg-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--bg-white);
  padding: 35px;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px var(--shadow);
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-card svg {
  width: 48px;
  height: 48px;
  color: var(--primary);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.feature-card p {
  color: var(--text-gray);
  line-height: 1.7;
}

/* Stats */
.stats {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 60px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  text-align: center;
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  display: block;
}

.stat-label {
  font-size: 1rem;
  opacity: 0.9;
}

/* How It Works */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  counter-reset: step;
}

.step {
  text-align: center;
  position: relative;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: var(--primary);
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  border-radius: 50%;
  margin: 0 auto 20px;
}

.step h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.step p {
  color: var(--text-gray);
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.blog-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 20px var(--shadow);
  transition: transform 0.3s ease;
}

.blog-card:hover {
  transform: translateY(-5px);
}

.blog-card-content {
  padding: 25px;
}

.blog-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.blog-card p {
  color: var(--text-gray);
  font-size: 0.95rem;
  margin-bottom: 15px;
}

.blog-card a {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* FAQ */
.faq {
  background: var(--bg-light);
}

.faq-item {
  background: var(--bg-white);
  border-radius: var(--radius);
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px var(--shadow);
}

.faq-question {
  width: 100%;
  padding: 20px 25px;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
  text-align: left;
}

.faq-question svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  transition: transform 0.3s ease;
}

.faq-question.active svg {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 25px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--text-gray);
}

.faq-answer.active {
  padding: 0 25px 20px;
  max-height: 500px;
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

/* Footer */
footer {
  background: var(--text-dark);
  color: white;
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: white;
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 10px;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease;
}

.footer-section a:hover {
  color: var(--primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

/* Blog Article */
.article-content {
  max-width: 750px;
  margin: 0 auto;
}

.article-content h2 {
  font-size: 1.8rem;
  margin: 30px 0 15px;
  color: var(--text-dark);
}

.article-content h3 {
  font-size: 1.4rem;
  margin: 25px 0 12px;
}

.article-content p {
  margin-bottom: 18px;
  color: var(--text-gray);
}

.article-content ul,
.article-content ol {
  margin: 15px 0;
  padding-left: 25px;
  color: var(--text-gray);
}

.article-content li {
  margin-bottom: 8px;
}

.article-content a {
  color: var(--primary);
  font-weight: 500;
}

.back-to-blog {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 30px;
  color: var(--text-gray);
  font-weight: 500;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--bg-white);
  box-shadow: 0 4px 20px var(--shadow);
  padding: 20px;
  z-index: 998;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu ul {
  flex-direction: column;
  gap: 0;
}

.mobile-menu li {
  border-bottom: 1px solid var(--border);
}

.mobile-menu a {
  display: block;
  padding: 15px 0;
  color: var(--text-gray);
}

/* Responsive */
@media (max-width: 768px) {
  nav ul {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .cta-floating {
    bottom: 20px;
    right: 20px;
    padding: 14px 24px;
    font-size: 1rem;
  }
}